• Protect peripherals from surges on the key-bus caused by "ground loops"
• Provide 1kV optical isolation
• Will extend the range of key-bus signals

The Bus Isolator should be used on sites where:

• The control panel power supply is not the only supply being used to power peripherals connected to a key-bus
• The key-bus cable is longer than 100m
• The key-bus cable runs outdoors
• The key-bus cable runs in a conduit alongside other electrical cables